In a Chisinau living room the existing switch turns on an RGBW strip through Shelly without feeding 230V into the control input.
The decoupler links a 230V switch to the DC inputs of a Shelly Plus RGBW PM.
What it is, who it's for, what it does
About this product
Shelly 4-Channel Decoupler 230V is a passive wiring accessory that links two separate electrical circuits (AC and DC) through a light-sensitive optical interface (an optocoupler). It takes the 230V~ signal from a wall switch or relay and turns it into a clean DC trigger, without feeding mains voltage into the control input of the device.<br><br>The module has 4 independent channels (4 ⊥ and 4 + outputs), draws under 0.6 W and fits a compact 44x34x7 mm housing with an 80 mm cable. It is used together with a compatible Shelly device (Plus RGBW PM, Pro RGBWW PM, Plus Uni, Plus Add-On) and must be installed by a qualified electrician.
- DeliveryFree from 1500 MDL
- Returns30 days to return
- Warranty24 months
15+projects delivered300+devices installed3 yearslocal-first experienceChișinăushowroom Columna 153Book a showroom visit →
Where it works
Use cases
On a staircase, four control points operate the same device through one decoupler.
The 4 channels serve up to four separate inputs of a Shelly Plus Add-On or Plus Uni.
Analytics
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For the installerTechnical specificationsfull spec · wiring · datasheet
For the installer
Technical specifications
full spec · wiring · datasheet
Other
- Channels
- 4
- Isolation
- Optocoupler (AC/DC)
Power
- Power supply
- 230V~ ±10%, 50 Hz
- Power consumption
- < 0.6 W
- Max output current
- 2.4 mA
Physical
- Dimensions
- 44 x 34 x 7 mm
- Weight
- 25 g
- Cable length
- 80 mm
Environment
- Operating temperature
- 0 to 40 °C
- Humidity
- 30 to 70 % RH
Support
Frequently asked questions
Which Shelly devices is the 4-channel decoupler compatible with?
It is compatible with Shelly Plus RGBW PM, Shelly Pro RGBWW PM, Shelly Plus Uni and Shelly Plus Add-On. It works only together with one of these.When do I need this decoupler?
When you want to control the low-voltage DC inputs of a compatible Shelly using a 230V switch or relay, without feeding mains voltage into the control input.Does the decoupler work on its own, without a Shelly device?
No. It is a passive wiring accessory with no radio protocol of its own and serves no function without a connected compatible Shelly device.How does the decoupler isolate the AC circuit from the DC one?
Through an optocoupler — a light-sensitive optical interface that links two separate circuits with no direct electrical contact, converting the 230V~ signal into a DC trigger.What are the dimensions and electrical parameters?
The module is 44x34x7 mm, weighs 25 g, has an 80 mm cable, draws under 0.6 W, has a maximum output current of 2.4 mA and is powered at 230V~ 50 Hz.Can I install it myself?
The connection touches 230V, so installation must be done by a qualified electrician with the power switched off. The CasaSmart team can help you check compatibility before ordering.
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Manager guidance
Questions about this product?
A CasaSmart manager calls you within 1–2 working hours and answers anything — compatibility, install, alternatives.
+373 60 944 922Updated: · reviewed by CasaSmart Expert Team